Ernests is a Latvian masculine given name. It is a cognate of the masculine given name Ernest and may refer to: Ernests Birznieks-Upītis (1871–1960), Latvian writer, translator and librarian Ernests Blanks (1894–1972), Latvian publicist, independence advocate Ernests Brastiņš (1892–1942), Latvian artist, amateur historian, folklorist and archaeologist Ernests Foldāts (1925–2003), Latvian-born Venezuelan botanist and orchidologist Ernests Gulbis (born 1988), Latvian professional tennis player Ernests Gūtmanis (1901–????), Latvian boxer and Olympic competitor Ernests Kalve (born 1987), Latvian basketball forward Ernests Mālers (1903–1982), Latvian cyclist and Olympic competitor Ernests Štālbergs (1883–1958), Latvian architect Ernests Vīgners (1850–1933), Latvian composer and conductor